408220577080

素因数分解:

$2^3\times 5^1\times {\mathrm{10205514427}}^1$

素因数の和:10205514438

約数の個数: 16

約数和(自身を含む): 918496298520

約数和(自身を除く): 510275721440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 10205514427, 20411028854, 40822057708, 51027572135, 81644115416, 102055144270, 204110288540, 408220577080]

約数ペア:

[(1, 408220577080), (2, 204110288540), (4, 102055144270), (5, 81644115416), (8, 51027572135), (10, 40822057708), (20, 20411028854), (40, 10205514427)]